增强的表面等离子共振生物传感器与石墨烯黑异构,用于超高灵敏度折射率检测,并具有机器学习用于行为预测
Jacob Wekalao1, Hussein A Elsayed2, Ahmed Mehaney3
1Department of Optics and Optical Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, China.
PloS one
|November 7, 2025
概括
这项研究引入了一种使用石墨烯和黑的新型生物传感器,用于精确检测低折射率介质. 先进的设计实现了高灵敏度和低检测极限,优于现有的生物传感器架构.
科学领域:
- 纳米技术和先进材料
- 生物传感和化学检测技术
背景情况:
- 表面等离子共振 (SPR) 生物传感器对于检测低折射率 (RI) 介质至关重要.
- 现有的架构面临着针对特定应用的灵敏度和检测极限的限制.
研究的目的:
- 设计一种新的五层SPR生物传感器架构,用于高精度检测低RI介质.
- 为了利用石墨烯和黑的协同性能,提高传感性能.
主要方法:
- 一个五层SPR生物传感器的制造:BK7玻璃,银,石墨烯,黑和分析物区域.
- 通过不同层厚度 (银,石墨烯,黑色) 使用COMSOL多物理的电磁优化.
- 在1.29-1.38 RIU的分析物RI范围内的性能评估.
- 使用K-近邻回归进行预测验证.
主要成果:
- 在n=1.35RIU时,达到300°/RIU的最大灵敏度.
- 获得了45.455 RIU-1的优点数字和0.018 RIU的检测极限.
- K-最近邻居回归证明了高可靠性,R2值为92-100%,MAE为0.005-0.012 RIU.
结论:
- 拟议的石墨烯黑异构SPR生物传感器显著增强了电磁场的限制.
- 优化的生物传感器在低RI介质的灵敏度和检测极限方面超过了之前报告的架构.
- 生物传感器在预测传感应用中表现出卓越的可靠性.
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